| 辐射对巫溪红三叶种子发芽率及幼苗生长的影响 |
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| 引用本文： | 段雪梅,田新会,姚泽恩,陆娟,刘晓玲.辐射对巫溪红三叶种子发芽率及幼苗生长的影响[J].贵州农业科学,2009,37(6). |
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| 作者姓名： | 段雪梅 田新会 姚泽恩 陆娟 刘晓玲 |
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| 作者单位： | 1. 甘肃农业大学,草业学院,甘肃,兰州,730070;甘肃农业大学,草业生态系统教育部重点实验室,甘肃,兰州,730070;中-美草地畜牧业可持续研究中心,甘肃,兰州,730070
2. 兰州大学,核科学与技术学院,甘肃,兰州,730030 |
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| 基金项目： | 中国博士后科学基金，国家科技支撑计划，草业生态系统教育部省部共建重点实验室项目 |
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| 摘 要： | 采用快中子不同剂量(0～38.634 Gy)辐射巫溪红三叶种子,观测其对种子发芽率、根长、芽长、出苗率和株高的影响.结果表明:发芽率和根长与辐射剂量呈负相关,芽长与辐射剂量呈正相关;低辐射剂量(6.608～23.86 Gy)可促进红三叶根芽生长,提高幼苗出苗率和株高,但抑制发芽率.高辐射剂量(＞38.634 Gy)对种子萌发、根长茎长生长、出苗率和株高均有一定抑制作用.辐射剂量为14.432 Gy时,对巫溪红三叶种子萌发及幼苗生长均有良好的促进作用.
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| 关 键 词： | 红三叶 辐射 发芽率 生长特性 |
Effects of Radiation on Seed Germination and Seedling Growth Characteristic of Wuxi Red Clover |
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| DUAN Xue-mei,TIAN Xin-hui,YAO Ze-en,LU Juan,LIU Xiao-ling.Effects of Radiation on Seed Germination and Seedling Growth Characteristic of Wuxi Red Clover[J].Guizhou Agricultural Sciences,2009,37(6). |
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| Authors: | DUAN Xue-mei TIAN Xin-hui YAO Ze-en LU Juan LIU Xiao-ling |
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| Institution: | 1.College of Grassland Science;Gansu Agricultural University;Lanzhou;Gansu 730070;2.Key Laboratory of Grassland Ecosystem Ministry of Education;3.Sino-U.S.Centers for Grazingland Ecosystem Sustainability;Agricultural University;4.School of Nuclear Science and Technology;Lanzhou University;Gansu 730030;China |
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| Abstract: | After being radiated with different dosage(0 to 38.634 Gy) of fast neutron,seed germination rate and growth characteristic of Wuxi red clover were observed.The result showed that,bud length and radiation dosage were positively correlated,but germination rate and root length were negatively correlated with the radiation dosage.Lower radiation dosage(6.608 to 23.86 Gy) promoted root length and bud length,germination rate and plant height,but prohibited seed germination.Higher radiation dosage(>38.634 Gy) proh... |
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| Keywords: | red clover radiation dosage germination rate growth characteristic |
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